@greek101: Copyright in the US is 50 years, not 70.

I'm checking the public domain status of this work since I was going to use it for a librivox recording.

When it was uploaded here, it was marked as "Public Domain Mark 1.0", however the publication date is 1927 in France and the author, hellenist Émile Chambry, was alive until 1951.
In France, the normal duration of copyright is 70 years following the end of the year of death of the author.
https://commons.wikimedia.org/wiki/Commons:Copyright_rules_by_territory/France#General

So please provide a clarification on the copyright status of this work.

Update:
Looking also on this page: https://copyright.cornell.edu/publicdomain
It says that
For works Published Abroad Before 1978, 1924 through 1977, Solely published abroad, without compliance with US formalities or republication in the US, and not in the public domain in its home country as of 1 January 1996 (but see special cases), the Copyright Term in the United States are:
95 years after publication date.

So it seems this book is not in the public domain.